/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

/*!
 * \file SymbolGeneratorFactory.java
 * \brief A factory used to create a generator for a given layer type
 */

package io.mxnet.caffetranslator;

import java.util.HashMap;
import java.util.Map;

public class SymbolGeneratorFactory {

    private static SymbolGeneratorFactory instance = new SymbolGeneratorFactory();
    Map<String, SymbolGenerator> generators;

    public static SymbolGeneratorFactory getInstance() {
        return instance;
    }

    private SymbolGeneratorFactory() {
        if (instance != null) {
            throw new IllegalStateException("SymbolGeneratorFactory already instantiated");
        }
        generators = new HashMap<>();
    }

    public SymbolGenerator getGenerator(String symbolType) {
        return generators.get(symbolType);
    }

    public void addGenerator(String symbolType, SymbolGenerator generator) {
        generators.put(symbolType, generator);
    }
}
